Ladies, ladies, please! We don’t have to tear each other apart in the name of love or jealousy or territory or fame.

But when we do, people will watch — as they did this past weekend, when the thriller “Obsessed” scratched and clawed its way to the top of the box office.

Featuring Beyonce Knowles as a wife whose marriage is threatened by another woman (Ali Larter) and propelled by a furniture-smashing catfight between the two sexy stars, “Obsessed” made a surprising $28.5 million in its opening weekend.